I used ANT500 [1] that came with HackRF One. I had to play with the angle a little to get a clear signal (horizontal worked for me). [1]: https://greatscottgad

I used ANT500 [1] that came with HackRF One. I had to play with the angle a little to get a clear signal (horizontal worked for me). [1]: https://greatscottgadgets.com/ant500/ https://greatscottgadgets.com/ant500/